U.S. singer Madonna performs during her

U.S. singer Madonna performs during her concert at Olympic Hall in Moscow on August 7, 2012. US pop icon Madonna said Tuesday at her Moscow concert that she prayed for the freedom of the three members of the Pussy Riot protest band who face three years in jail for insulting Vladimir Putin in a church. AFP PHOTO / POOL / MIKHAIL METZEL (Photo credit should read MIKHAIL METZEL/AFP/GettyImages)